Buys them a day to keep Bionic alive, we just execute Bionic the next day, Frost gets to live regardless and gains credit from the kill (claimed they were mafia), Bionic gets to use their abilities regardless further on the night.
It’s almost definite that they have abilities that makes them strongman or anything of that regard, Bionic would just carry out the factional kill and complete an action for completely free while we have nothing we can do about it in that case, no matter if we just tried to roleblock them.